public class Student{
    private String username;
    private String id;
    private String gender;
    private String password;
    private String address;
    private int age;
    public Student(){
        this.username = "None";
        this.id = "000000";
        this.gender = "男";
        this.password = "123456";
        this.address = "None";
        this.age = -1;
    }
    public Student(String _name, String _id, String _gender, String _password, String _address, int _age){
        this.username = _name;
        this.id = _id;
        this.gender = _gender;
        this.password = _password;
        this.address = _address;
        this.age = _age;
    }
    public String getUsername(){
        return this.username;
    }
    public String getId(){
        return this.id;
    }
    public String getGender(){
        return this.gender;
    }
    public String getPassword(){
        return this.password;
    }
    public String getAddress(){
        return this.address;
    }
    public int getAge(){
        return this.age;
    }
    public void setUsername(String _name){
        this.username = _name;
    }
    public void setId(String _id){
        this.id = _id;
    }
    public void setGender(String _gender){
        this.gender = _gender;
    }
    public void setPassword(String _password){
        this.password = _password;
    }
    public void setAddress(String _address){
        this.address = _address;
    }
    public void setAge(int _age){
        this.age = _age;
    }
}